In nearly all the western countries including Europe, the primary choice for meat is PIG. There are a lot of farms in these countries to breed this animal. In France alone, Pig Farms account for more than 42,000.
PIGS have the highest quantity of FAT in their body than any other animal. But Europeans and Americans try to avoid fats.
Thus, where does the fat from these pigs go? All pigs are cut in slaughter houses under the control of the department of food and it was the headache of the department of food to dispose of the fat removed from these pigs.
Formally, it was burnt “about 60 years ago”. Then they thought of utilizing it. First, they experimented in the making of Soap and it worked.